CN103206363B - Miniature weight feed pump and the method being used for manufacturing miniature weight feed pump - Google Patents

Miniature weight feed pump and the method being used for manufacturing miniature weight feed pump Download PDF

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Publication number
CN103206363B
CN103206363B CN201310010530.XA CN201310010530A CN103206363B CN 103206363 B CN103206363 B CN 103206363B CN 201310010530 A CN201310010530 A CN 201310010530A CN 103206363 B CN103206363 B CN 103206363B
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CN
China
Prior art keywords
pump
pump chamber
fluid
weight feed
disc
Prior art date
Application number
CN201310010530.XA
Other languages
Chinese (zh)
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CN103206363A (en
Inventor
F.莱尔默
A.丹嫩贝格
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罗伯特·博世有限公司
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Filing date
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Priority to DE102012200501A priority Critical patent/DE102012200501A1/en
Priority to DE102012200501.3 priority
Application filed by 罗伯特·博世有限公司 filed Critical 罗伯特·博世有限公司
Publication of CN103206363A publication Critical patent/CN103206363A/en
Application granted granted Critical
Publication of CN103206363B publication Critical patent/CN103206363B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04Pumps having electric drive
    • F04B43/043Micropumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/1037Flap valves
    • F04B53/1047Flap valves the valve being formed by one or more flexible elements
    • F04B53/106Flap valves the valve being formed by one or more flexible elements the valve being a membrane
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49229Prime mover or fluid pump making
    • Y10T29/49236Fluid pump or compressor making

Abstract

nullThe present invention relates to a kind of miniature weight feed pump and its manufacture method a kind of,This pump includes the pump chamber substrate with pump chamber,The flexible film being arranged on pump chamber substrate side,Its fluid-tight ground covers pump chamber,At least one fluid circuit being arranged on the second side of pump chamber substrate,Make fluid can flow in and out pump chamber,Rotating valve disc with at least one fluid through flow hole,It is arranged in pump chamber and is designed to carry out sealing fluid pipeline by rotation and open fluid circuit via fluid through flow hole,Permanent magnetization or magnetizable actuator disc,It couples with valve disc in this wise through the element of at least one spring,The rotation making actuator disc causes the rotation of valve disc,Wherein,Valve disc and actuator disc are mutually backed down by the element of spring,With magnetic pump plunger shaft stopper rod、For making film motion to suck or to discharge the driver element of fluid,It is designed for rotation permanent magnetization or magnetizable actuator disc.

Description

Miniature weight feed pump and the method being used for manufacturing miniature weight feed pump

Technical field

The present invention relates to a kind of miniature weight feed pump (miniature dosing pump) and a kind of method for manufacturing miniature weight feed pump.

Background technology

If must simultaneously meet the high request of the inherently safe function to miniature weight feed pump, then the most miniature weight feed pump may often be such that cost is high and costliness.Such as must assure that for insulin pump and insulin administration unintentionally can occur in no instance, because this is likely to be of serious health consequences for patient.Therefore, herein, the most all must assure that the high-precision administration of the dosage of requirement.

Although the remodeling axial plunger pump based on die-cast part in EP1966490B1 is promised to undertake meets all security features under relatively low manufacturing cost, but the degree that is miniaturized herein is subject to certain restrictions, because it relates to the three-dimensional setting of 3D separate part, these 3D separate parts the most also must be in side edge by dimensionally structuring.The manufacturing tolerance needed herein is being related to certain minimum dimension, and plunger needs minimum length, for properly functioning plunger guide.

Summary of the invention

A kind of miniature weight feed pump as described below and a kind of as described below for the method manufacturing miniature weight feed pump is provided according to the present invention.

Correspondingly provide:

nullA kind of miniature weight feed pump,Including the pump chamber substrate with pump chamber,Including flexible film,It is arranged on the side of pump chamber substrate in this wise,Cover pump chamber with making its fluid-tight,Including at least one fluid circuit,This fluid circuit is arranged on the second side of pump chamber substrate in this wise,Make fluid can flow in and out pump chamber,Including the rotating valve disc with at least one fluid through flow hole,It is arranged in pump chamber and is designed to carry out sealing fluid pipeline by rotation and open fluid circuit via fluid through flow hole,Including partly permanent magnetization or magnetizable actuator disc,It couples with valve disc in this wise through the element of at least one spring,The rotation making actuator disc causes the rotation of valve disc,Wherein,Valve disc and actuator disc are mutually backed down by the element of spring,Including the driver element with magnetic pump plunger shaft stopper rod (pump tappet),It is designed for making film move,To suck or discharging fluid,And be designed for rotating permanent magnetization or magnetizable actuator disc.

In addition a kind of method for manufacturing the miniature weight feed pump according to the present invention is provided, including following methods step: (A) provides the pump chamber substrate with pump chamber;(B) valve disc and actuator disc are set in pump chamber;(C) magnetic field is produced in this wise so that valve disc and actuator disc are drawn in pump chamber and are fixed there;(D) film is connected with pump chamber substrate.

Advantages of the present invention

The present invention provides a kind of miniature weight feed pump, and it is configured to plane formula component.Film, valve disc and actuator disc substantially flattened construct.Therefore this miniature weight feed pump can be designed to the most flat and miniaturization.According to the present invention, at least one fluid circuit in pump chamber substrate can close actively by the rotation of valve disc or open.By this control actively, high suction pressure and discharge pressure can be realized according to the miniature weight feed pump of the present invention.In addition according to the miniature weight feed pump of the present invention owing to there being controllable valve disc can tolerate bubble.

It is particularly well-suited to reliably measure and carry little amount of liquid (0.01-100 μ L/ minute), such as in drug dose, especially in the pharmaceutical formulation of the insulin in insulin pump according to the miniature weight feed pump of the present invention.It is particularly preferred that be applied in insulin rod according to the miniature weight feed pump of the present invention, the medical instrument of a kind of pencil sized, it uses in insulin intensive treatment.

When miniature weight feed pump should draw fluid in pump chamber, owing to there being the element of spring, diaphragm can be raised by actuator disc particularly well the most again from the position of bottom.This make actively and quickly suck and be possibly realized, although pump plunger shaft stopper rod is not in fixing connection with film.Owing to the reason of valve disc element based on spring is pressed forcefully against the bottom of pump chamber all the time, therefore it can very well seal at least one fluid circuit.

According in the miniature weight feed pump structure of the present invention, it is not necessary to the sealing lip of any grinding for sealing fluid circuit.Additionally, compared with the pump with mobilizable plunger, this plunger must simultaneously move up and down and to move the most rotatably under keeping the effect fully sealed, and does not has any sealing and wear problem according to the miniature weight feed pump of the present invention.

Pump plunger shaft stopper rod is preferably provided with magnet and offsets the most in vertical direction on a phase (Phase) suitable, so-called, thus cubical content is expelled from according to priority and again sucks.This phase is arranged in the driving unit.According to the present invention, controlled the opening and closing of fluid circuit in pump chamber by rotational actuator dish, thus have only to an only actuator generally, it rotation including combination and reciprocating motion, it is used for running miniature weight feed pump.

Favourable design and improvement project are drawn by the explanation of diagram referring to the drawings.

In one embodiment, driver element has electro-motor.Electro-motor may be used for the lifting of pump plunger shaft stopper rod in the case, with the film that skew is elastic, and the rotation for pump plunger shaft stopper rod, to control actuator disc.Certainly, driver element can also have the pneumatic and/or actuator of hydraulic pressure, and they can make pump plunger bar pump and rotate.

In another embodiment, driver element has sensor, the lift (lifting) of this sensor detection pump plunger shaft stopper rod.Sensor can be such as Hall element.By means of the supervision of the lift to pump plunger shaft stopper rod, it is possible not only to detect the cubical content of miniature weight feed transport pump, and bubble and obstruction can be detected.

In another embodiment, actuator disc has space, arrange in this space permanent magnetization or magnetizable rod.Material as this rod such as can use ferrum, cobalt, nickel, ferrite and/or neodymium.On the one hand permanent magnet has the advantage that, determines attaching troops to a unit of pump plunger shaft stopper rod and actuator disc the most clearly, on the other hand can also use and be different from other excellent shape, as long as different magnetic poles is positioned in rotational plane.Impermanent magnetized or magnetizable material has the advantage that, i.e. can use different, the material of cost advantages or manufacturing process.Bar can be enclosed in described space when needed airtightly, such as by being welded on by lid above space and/or being filled airtightly in this space.

In another embodiment, valve disc, actuator disc, element and/or the pump chamber substrate of spring are made of plastics.Such as valve disc, actuator disc, the element of spring and/or pump chamber substrate can be by die casting such as by polycarbonate, polypropylene, PVC, polystyrene, politef (Teflon), PFPE, etc. make.But it is also contemplated that other material, such as metal and/or semi-conducting material.

In another embodiment, the element of valve disc and/or spring be micro-stamping-out make.The manufacturing cost of miniature weight feed pump can be reduced by this way.But the method that can also use other, such as cut, thermal release, plasma etching and/or etching, manufacture the element of valve disc and/or spring.

In another embodiment, the fluid through flow hole of valve disc has arc or the shape of circle.The combination of circle and segmental arc can certainly be considered.

In another embodiment, driver element is designed to durable unit, and pump chamber substrate, film, actuator disc and valve disc are designed to disposable unit.A kind of reusable device (device) such as it is construed as durable unit.Such as it is construed as a kind of removable as disposable unit, the device (device) of non-durable.The operating cost of miniature weight feed pump can be reduced by this embodiment, there is easy wear phenomenon or device (device) that the fluid such as insulin preparation that the most easily carried pollutes because can only change.

In another embodiment, the element of spring is designed to beam spring (spring beam), disc spring and/or helical spring.The element of best such design spring so that the degree of freedom of its only one of which translation.Thus the moment of torsion of actuator disc can be delivered on valve disc, wherein, it is therefore prevented that the inclination of valve disc.

In another embodiment, the element of film and spring constructs integratedly.Thus significantly reduce dead volume and thus can improve the suction capactity of miniature weight feed pump.In this embodiment, film is designed to slightly thick, thus it can undertake the function of the element of spring well.In this embodiment, moment of torsion transmission from pump plunger shaft stopper rod to actuator disc can realize via the coupling (coupling) of a kind of machinery.The transmission of such as moment of torsion can be connected by form fit or be connected by power transmission and realizes.

In another embodiment, film is constituted by thermoplastic elastomer films or by structurized thermoplastic.Such as film is made up of Platilon (Platilon) or polycarbonate.Especially there is concavo-convex (embossment) film at the cylindrical reinforcing section of center and be perfectly suitable for the miniature weight feed pump according to the present invention.This film such as has the thickness of about 100-1000 μm in center and has the thickness of about 20-100 μm in edge.

In another embodiment, this film is by bonding, and ultrasonic bonding, solvent bonding and/or laser transmission welding (Laser Deep Penetration Welding) are connected with pump chamber substrate.Other method of attachment can certainly be used.

As long as significant, above-mentioned design and improvement project can the most at random combine.Other possible design of the present invention, before improvement project and embodiment are also included within or in the non-combination explicitly pointed out below in relation to the inventive feature described by embodiment.The most single characteristic aspect is also joined in the corresponding base form of the present invention as improving or supplement by professional.

Accompanying drawing explanation

The present invention is described in detail below by the embodiment be given in the schematic diagram of accompanying drawing.In the accompanying drawings:

Fig. 1 shows the schematic section of a miniature weight feed pump;

Fig. 2 shows the diagrammatic top view of pump chamber substrate and valve disc;

Fig. 3-7 shows a complete pump circulation of miniature weight feed pump;

Fig. 8 shows the schematic section of a kind of embodiment of film;

Fig. 9 shows the schematic section of a kind of embodiment of film and pump chamber substrate;

Figure 10 shows the schematic section of a kind of embodiment of miniature weight feed pump;

Figure 11 shows the schematic section of a kind of embodiment of valve disc and pump chamber substrate.

Accompanying drawing should be facilitated and is further understood from embodiments of the present invention.These accompanying drawings have diagrammatically illustrated these embodiments and have combined description for explaining principle and the design concept of the present invention.The advantage described in other embodiment and many of which can be drawn for accompanying drawing.Parts in accompanying drawing are not necessary to illustrate pari passu each other.

In the accompanying drawings, as long as no other explanation, identical, that function is identical and act on identical element, feature and parts and be respectively adopted identical reference.

Detailed description of the invention

Fig. 1 shows the schematic section of miniature weight feed pump 1.Miniature weight feed pump substantially has durable unit 23 and disposable unit 24.Disposable unit 24 has pump chamber substrate 19, and pump chamber substrate 19 has the pump chamber 2 being disposed therein.Pump chamber substrate 19 such as can be configured to by polycarbonate, polypropylene, PVC, polystyrene, politef (Teflon) and/or PFPE by die casting.But, other material is also applied for manufacturing pump chamber substrate 19, such as metal and/or semi-conducting material.On a side of few substrate, flexible film 3 is connected with pump chamber substrate 19 fluid-tight ground.Pump chamber substrate 19 has at least one fluid circuit 4, its pump chamber 2 allowing fluid to flow in and out pump chamber substrate 19.Additionally, rotating valve disc 6 is arranged in pump chamber 2.Rotating valve disc 6 has fluid circulating hole 17 and is arranged in above fluid circuit 4.Fluid through flow hole 17 can be made selectively to open or close fluid circuit 4 by rotating valve disc 6.Valve disc 6 couples with valve disc in this wise through the element 16 of at least one spring so that the rotation of actuator disc 14 causes valve disc 6 to rotate.Additionally, the element 16 of spring has such function, will valve disc and actuator disc mutually back down.As such, it is possible to the actuator that need not add realizes drawing fluid in pump chamber 2.Additionally, valve disc 6 top is pressed to the bottom of pump chamber substrate 19 by the element 16 of spring, thus valve disc 6 fluid-tight ground seals fluid circuit 4.

Driver element 20 is arranged in above disposable unit 24.Driver element 20 has pump plunger shaft stopper rod 7, film can be made whereby to promote or reduce, in order to drawing fluid into and be pumped in pump chamber 2.Pump plunger shaft stopper rod magnet 8 is arranged at pump plunger shaft stopper rod 7.Pump plunger shaft stopper rod magnet 8 is with permanently magnetized or magnetizable excellent 15 jointly act on, and this rod 15 is arranged in actuator disc 14.By means of pump plunger shaft stopper rod magnet 8, the actuator disc 14 in pump chamber 2 can be made to rotate by magnetic coupling, wherein, the rotation of actuator disc 14 causes valve disc 6 to rotate.Pump plunger shaft stopper rod 7 can pump by means of actuator 11 1 aspect, in order to realizes the skew of film 3, and on the other hand can rotate around its longitudinal axis, in order to realizes the rotation of actuator disc 14.Pump plunger shaft stopper rod 7 thus undertakes the repertoire required for pumping procedure.Pump plunger shaft stopper rod magnet 8 can design as the magnet arranged in actuator disc.Electromagnet can also be applied to pump plunger shaft stopper rod magnet 8.

Return spring 9 is set at pump plunger shaft stopper rod 7.Return spring 9 makes pump plunger shaft stopper rod 7 reduce the most in this wise so that under the relaxed state of return spring 9, film 3 is positioned in a location below.The actuator 11 e.g. electromagnetic motor of driver element 20.But pneumatic and/or hydraulic drive system can be used for actuator 11.Actuator 11 is surrounded by fixed body 10 and is held.Additionally, the end face of fixed body 10 plays a part the backstop of the end face of disposable unit 24 and responsible pump plunger shaft stopper rod magnet 8 relative to the altitude mixture control between film or actuator disc 14.Arranging magnet 18 in an end of pump plunger shaft stopper rod 7, this magnet acts on as the sensor transmitter 18 being used for being arranged in the sensor 13 above magnet 18.Sensor 13 e.g. Hall element.From there through the spacing between magnet 18 and sensor 13, the lift of pump plunger shaft stopper rod can be detected.Additionally, arrange backstop 12, the movement of restrictive pump plunger rod 7 whereby.

Fig. 2 shows pump chamber substrate 19 and the diagrammatic top view of valve disc 6.Valve disc 6 has two elongated semi-moon shaped fluid through flow holes 17.Fluid through flow hole 17 discharges fluid circuit 4 periodically, such that it is able to suck or release fluid.Valve disc 6 rotates around pivot center 21 in the case.Angle of rotation is previously given by the magnet 8 being fixed on pump plunger shaft stopper rod 7 in the case.The guiding of side is ensured by the pump chamber substrate wall of side.In order to valve disc 6 is not pulled open from fluid circuit 4 and 5 by the magnet 8 of pump plunger shaft stopper rod 7, realize magnetic coupling by actuator disc 14.The rod 15 of actuator disc 14 or permanent magnet, its advantage is to have clear and definite coupling, or magnetizable rod between the magnet 8 of pump plunger shaft stopper rod 7, and its advantage is to have wider material to select for the magnet 15 for actuator disc 14.

If rod 15 does not have permanent magnetization, then can have two kinds of coupling modification, they are rotated 180 ° each other.In order to ensure a clear and definite pumping direction, fluid circuit 4, it plays a part fluid in the present embodiment and enters pipeline, when should be in identical when valve disc 6 rotates every 180 °, it is to say, be opened or closed at least twice or the multiple of this number of times during the rotation of around pivot center 21 complete 360 °.This is corresponding to the pump symmetry about pivot center 21 of a kind of fluid through flow hole 17 in valve disc.If being used for controlling two fluid circuits 4 and 5 by same fluid through flow hole 17, that is, fluid circuit 4 and 5 has identical radial spacing relative to pivot center 21, then these fluid through flow holes 17 should be configured with the spacing of rotation (angle) or the interval of its fractional part of 90 °.In order to the most at least a fluid circuit 4,5 is to close, elongated fluid through flow hole 17 should be configured to the shortest (being shorter than quarter circular arc).If fluid circuit 4 and 5 has different radial spacings relative to pivot center 21, so that fluid through flow hole 17 only controls fluid circuit 4 and two additional, semi-moon shaped fluid through flow hole 17 only controls fluid circuit 5, so fluid circuit 4 and 5 can be arranged with arbitrary angle each other about pivot center 21, as long as fluid through flow hole 17 and two additional fluid through flow holes are arranged in this wise, fluid circuit 4 and 5 is opened or closed, in order to ensure clear and definite fluid conveying direction in the correct moment.

On the contrary, if arranging permanent magnet 15 in actuator disc 14, then attaching troops to a unit of pump plunger shaft stopper rod 7 is exactly clear and definite.The semilune fluid through flow hole 17 that thus only one is only can also enough perform a simple pump circulation, or be respectively arranged with a fluid through flow hole 17 and one additional, be arranged in the fluid through flow hole at the radial spacing different from this fluid through flow hole 17, if two fluid circuits 4 and 5 have different radial spacings relative to pivot center 21.

Fig. 3,4,5,6 and 7 show a complete pump circulation of miniature weight feed pump.

Fig. 3 shows the schematic section of an embodiment of the most miniature weight feed pump 1, and fluid flows out pump chamber 2 in this condition.Film 3 is pushed up downwards pressure by pump plunger shaft stopper rod 7.Thus forming overvoltage in pump chamber 2, the fluid being arranged in pump chamber 2 is pressed in fluid circuit 5 by this overvoltage by fluid through flow hole 17, and this fluid is then out pump chamber 2.

Fig. 4 shows the schematic section of the miniature weight feed pump 1 under fluid circuit 4 and 5 is closed.After by fluid draining pump room 2, fluid circuit 4 and 5 is closed by valve disc 6.The closedown of fluid circuit 4 and 5 is realized by rotating valve disc 6 around pivot center 21.For this, pump plunger shaft stopper rod 7 is rotated around its longitudinal axis, wherein, the magnet of pump plunger shaft stopper rod 78 by magnetic coupling with the permanent magnetization in actuator disc 14 or magnetizable excellent 15 jointly act on.By the element 16 of spring, the rotation of actuator disc 14 is passed on valve disc 6.

Fig. 5 shows the schematic section at weight feed pump 1 miniature during pump chamber draws fluid.Valve disc 6 is rotated in this wise so that the fluid through flow hole 17 of valve disc discharges fluid circuit 4, thus enables a fluid to flow into pump chamber 2.The skew of film 3 can realize by means of the element 16 of spring, and actuator disc 14 is pushed up pressure and separated with valve disc 6 by it.In addition it can be possible that the magnet 8 of pump plunger shaft stopper rod 7 supports moving upward of film 3.

Fig. 6 shows a schematic section of miniature weight feed pump 1.Under the shown state of miniature weight feed pump 1, film 3 is positioned on the position on a top, and wherein, actuator disc 14 and valve disc 6 are mutually backed down by the element 16 of spring.After fluid is inhaled in pump chamber 2, the fluid circuit 4 and 5 in pump channel substrate 19 rotates around the carrying out of pivot center 21 by means of valve disc 6 again and is closed.

Fig. 7 shows the schematic section of miniature weight feed pump 1 during fluid draining pump room 2.The difference of Fig. 7 with Fig. 3 is, the magnet 8 of pump plunger shaft stopper rod 7 has been carried out the rotation of 180 ° now, and can carry out again discharging fluid from pump chamber 2.

Fig. 8 shows the schematic section of an embodiment of film 3.In this embodiment, film 3 is that Construction integration becomes with the element 16 of spring.This can be by realizing with elastomeric materials film 3, and this elastomeric material undertakes the function of the element 16 of spring.Film 3 designs the most in this wise so that the moment of torsion being applied in actuator disc 14 is passed on valve disc 6.For this embodiment, film 3 is designed to more firmly and thicker.

Fig. 9 shows the schematic section of an embodiment of film 3 and pump chamber substrate 19.In this embodiment, pump chamber substrate 19 has backstop 22, and it prevents the actuator disc 14 may from pump chamber substrate 19 out.

Figure 10 shows the schematic section of an embodiment of miniature weight feed pump 1.In this embodiment, sealing 25 being provided below at valve disc 6, it is arranged around fluid circuit 4.Seal 25 and such as can be designed to plastic O-ring.Sealing 25 makes valve disc 6 seal relative to pump chamber substrate 19, thus does not has fluid can flow outwardly or flow into by fluid circuit 4 in pump chamber 2 with inhuman being willing to.

Figure 11 shows the schematic section of an embodiment of valve disc 6.In this embodiment, during only one fluid through flow hole 17 is arranged on valve disc 6.

Although the present invention illustrates by means of preferred embodiment completely above, but the present invention is not limited to this, but can modify with method in many ways.

Such as coupling one to control and adjusting means with miniature weight feed pump, it controls and regulates the function of miniature weight feed pump.

Such as can also arrange one according to PDA(personal digital assistant) driving of type and dosing control unit, it controls and monitors the function of miniature weight feed pump.

It is also contemplated that the batch production of miniature weight feed pump, wherein, in a kind of polymeric substrates, being mutually arranged side by side substantial amounts of pump chamber substrate, they are just cut by sawing or water jet after being configured with film or other separation method is separated.

Additionally, the top backstop for pumping diaphragm can be incorporated in the structure limiting film lift.

Additionally, for the embodiment shown in Fig. 9, mechanical couplings can be used to replace the moment of torsion of pump plunger shaft stopper rod 7 and the magnetic couplings of actuator disc 14.For this actuator disc 14, there is recess, for mechanically engaging bulge-structure on pump plunger shaft stopper rod 7 (or oppositely, i.e. on pump plunger shaft stopper rod, there is recess), such as form is recess and the bulge-structure of a cruciform slot screw bottle opener of a cruciform slot screw end.Advantageously, the contact surface being used for transmitting moment of torsion constructs abreast with pivot center as far as possible.

Claims (15)

  1. The most miniature weight feed pump (1),
    Including the pump chamber substrate (19) with pump chamber (2),
    Including flexible film (3), it is arranged on the side of pump chamber substrate (19) in this wise so that its fluid-tight ground covers pump chamber (2),
    Including at least one fluid circuit (4), this fluid circuit is arranged on the second side of pump chamber substrate (19) in this wise so that fluid can flow in and out pump chamber (2),
    Including the rotating valve disc (6) with at least one fluid through flow hole (17), it is arranged in pump chamber (2) and is designed to carry out sealing fluid pipeline (4) by rotation and open fluid circuit (4) via fluid through flow hole (17),
    Including permanent magnetization or magnetizable actuator disc (14), it couples with valve disc (6) in this wise through the element (16) of at least one elasticity, the rotation making actuator disc (14) causes the rotation of valve disc (6), wherein, valve disc (6) and actuator disc (14) are mutually backed down by elastic element (16)
    Including the driver element (20) with magnetic pump plunger shaft stopper rod (7), it is designed for making film (3) move, in order to suck or discharge fluid, and be designed for rotating permanent magnetization or magnetizable actuator disc (14).
  2. Miniature weight feed pump the most according to claim 1, it is characterised in that driver element (20) has electro-motor (11).
  3. Miniature weight feed pump the most according to claim 1 and 2, it is characterised in that driver element (20) has sensor (13), the lift of this sensor detection pump plunger shaft stopper rod (7).
  4. Miniature weight feed pump the most according to claim 1 and 2, it is characterised in that actuator disc (14) has space, arranges rod (15) in this space, and this rod has magnetizable material.
  5. Miniature weight feed pump the most according to claim 1 and 2, it is characterised in that valve disc (6), elastic element (16) and/or pump chamber substrate (19) are made of plastics.
  6. Miniature weight feed pump the most according to claim 1 and 2, it is characterised in that make element (16) micro-stamping-out of valve disc (6) and/or elasticity.
  7. Miniature weight feed pump the most according to claim 1 and 2, it is characterised in that the fluid through flow hole (17) of valve disc (6) has arc or the shape of circle.
  8. Miniature weight feed pump the most according to claim 1 and 2, it is characterized in that, driver element (20) is designed to durable unit (23), and pump chamber substrate (19), film (3), actuator disc (14) and valve disc (6) are designed to disposable unit (24).
  9. Miniature weight feed pump the most according to claim 1 and 2, it is characterised in that elastic element (16) is designed to beam spring, disc spring and/or helical spring.
  10. Miniature weight feed pump the most according to claim 1 and 2, it is characterised in that film (3) and elastic element (16) are configured to integratedly.
  11. 11. miniature weight feed pumps according to claim 10, it is characterised in that the moment of torsion from pump plunger shaft stopper rod to actuator disc passes through a kind of mechanical couplings and realizes.
  12. 12. miniature weight feed pumps according to claim 1 and 2, it is characterised in that film (3) is constituted by thermoplastic elastomer films or by structurized thermoplastic.
  13. 13. miniature weight feed pumps according to claim 4, it is characterised in that described rod has permanent magnetization.
  14. 14. for manufacturing the method according to miniature weight feed pump in any one of the preceding claims wherein, including following methods step:
    (A) the pump chamber substrate (19) with pump chamber (2) is provided;
    (B) valve disc (6) and actuator disc (14) are set in pump chamber (2);
    (C) magnetic field is produced in this wise so that valve disc (6) and actuator disc (14) are drawn in pump chamber (2) and are fixed there;
    (D) film (3) is connected with pump chamber substrate (19).
  15. 15. methods for manufacturing miniature weight feed pump according to claim 14, it is characterised in that be bonded by bonding, ultrasonic bonding, solvent and/or laser transmission welding makes film (3) be connected with pump chamber substrate (19).
CN201310010530.XA 2012-01-13 2013-01-11 Miniature weight feed pump and the method being used for manufacturing miniature weight feed pump CN103206363B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102012200501A DE102012200501A1 (en) 2012-01-13 2012-01-13 Microdosing pump and method for manufacturing a microdosing pump
DE102012200501.3 2012-01-13

Publications (2)

Publication Number Publication Date
CN103206363A CN103206363A (en) 2013-07-17
CN103206363B true CN103206363B (en) 2016-12-28

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Application Number Title Priority Date Filing Date
CN201310010530.XA CN103206363B (en) 2012-01-13 2013-01-11 Miniature weight feed pump and the method being used for manufacturing miniature weight feed pump

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US (1) US9194388B2 (en)
CN (1) CN103206363B (en)
DE (1) DE102012200501A1 (en)
FR (1) FR2985790A1 (en)
IT (1) ITMI20122238A1 (en)

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US9194388B2 (en) 2015-11-24
US20130183170A1 (en) 2013-07-18

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